Product details

Architecture FET / CMOS Input, Voltage FB Number of channels (#) 1 Total supply voltage (Min) (+5V=5, +/-5V=10) 8 Total supply voltage (Max) (+5V=5, +/-5V=10) 12 GBW (Typ) (MHz) 230 BW @ Acl (MHz) 500 Acl, min spec gain (V/V) 1 Slew rate (Typ) (V/us) 290 Vn at flatband (Typ) (nV/rtHz) 7 Vn at 1 kHz (Typ) (nV/rtHz) 10 Iq per channel (Typ) (mA) 14 Vos (offset voltage @ 25 C) (Max) (mV) 0.6 Rail-to-rail No Rating Catalog CMRR (Typ) (dB) 95 Input bias current (Max) (pA) 5 Offset drift (Typ) (uV/C) 2 Output current (Typ) (mA) 70 2nd harmonic (dBc) 71 3rd harmonic (dBc) 81 @ MHz 5
Architecture FET / CMOS Input, Voltage FB Number of channels (#) 1 Total supply voltage (Min) (+5V=5, +/-5V=10) 8 Total supply voltage (Max) (+5V=5, +/-5V=10) 12 GBW (Typ) (MHz) 230 BW @ Acl (MHz) 500 Acl, min spec gain (V/V) 1 Slew rate (Typ) (V/us) 290 Vn at flatband (Typ) (nV/rtHz) 7 Vn at 1 kHz (Typ) (nV/rtHz) 10 Iq per channel (Typ) (mA) 14 Vos (offset voltage @ 25 C) (Max) (mV) 0.6 Rail-to-rail No Rating Catalog CMRR (Typ) (dB) 95 Input bias current (Max) (pA) 5 Offset drift (Typ) (uV/C) 2 Output current (Typ) (mA) 70 2nd harmonic (dBc) 71 3rd harmonic (dBc) 81 @ MHz 5
  • Unity-Gain Bandwidth
  • Low Input Bias Current
  • Low Offset and Drift
  • Low DL
  • High Output Current
  • Low Input Voltage Noise
  • Unity-Gain Bandwidth
  • Low Input Bias Current
  • Low Offset and Drift
  • Low DL
  • High Output Current
  • Low Input Voltage Noise

The OPA656 combines a very wideband, unity-gain stable, voltage-feedback op amp with a FET-input stage to offer an ultra high dynamic-range amplifier for ADC (analog-to-digital converter) buffering and transimpedance applications. Extremely low DC errors give good precision in optical applications.

The high unity-gain stable bandwidth and JFET input allows exceptional performance in high-speed, low-noise integrators.

The OPA656 combines a very wideband, unity-gain stable, voltage-feedback op amp with a FET-input stage to offer an ultra high dynamic-range amplifier for ADC (analog-to-digital converter) buffering and transimpedance applications. Extremely low DC errors give good precision in optical applications.

The high unity-gain stable bandwidth and JFET input allows exceptional performance in high-speed, low-noise integrators.

Technical documentation

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Type Title Date
* Data sheet Wideband, Unity-Gain Stable, FET-Input Operational Amplifier datasheet 22 Mar 2012
Technical article How to reduce distortion in high-voltage, high-frequency signal generation for AWGs 30 Oct 2018
Technical article What are the advantages of using JFET-input amplifiers in high-speed applications? 19 Jun 2018
Technical article Unique active mux capability combines buffer and switch into one solution 10 Oct 2017
Technical article How to minimize filter loss when you drive an ADC 20 Oct 2016
More literature Wafer/Die Solutions (Rev. A) 19 Apr 2012
Application note Noise Analysis for High Speed Op Amps (Rev. A) 17 Jan 2005

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